I am curios about the production process of LEDs, particularly using the method of growing the crystal using CVD. I am not exactly sure where the best place is to start but here goes my first question. The refraction of SiC is as such that the light gets largely reflected back into the diode. What material is usually used to interface with the diode to reduce these characteristics? and... Can materials like borosilicate glass be used to optically interface the diode and be deposited via PLD? Can a good LED be grown using PLD by using a mask rather then dicing?